- Sister Luke is based on a real-life former nun named Marie-Louise Habets, whom Audrey Hepburn consulted prior to production.
- An often-reported legend surrounding this movie is the story that Hepburn demanded a bidet be provided for her on location in the Congo. Hepburn always denied this, wondering how such an extravagance could even be hooked up in the Congo.
- Members of the Rome Opera ballet corps were hired to play some of the nuns, and complex convent rituals were literally choreographed for them.
Please support TCMDB by adding to this information.Click here to contribute